YK

Yoshifumi Katsumata

EB Ebara: 3 patents #598 of 1,611Top 40%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Overall (All Time): #1,539,923 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8398811 Polishing apparatus and polishing method Tatsuya Sasaki, Naoshi Yamada, Noburu Shimizu, Seiryo Tsuno, Takashi Mitsuya 2013-03-19
8388409 Substrate polishing apparatus Hidetaka Nakao, Yasumitsu Kawabata, Naoki Ozawa, Tatsuya Sasaki, Atsushi Shigeta 2013-03-05
8025759 Polishing apparatus and polishing method Tatsuya Sasaki, Naoshi Yamada, Noburu Shimizu, Seiryo Tsuno, Takashi Mitsuya 2011-09-27